From mboxrd@z Thu Jan 1 00:00:00 1970 From: plagnioj@jcrosoft.com (Jean-Christophe PLAGNIOL-VILLARD) Date: Mon, 15 Aug 2011 11:09:21 +0200 Subject: [PATCH 1/3] ARM: mmp: add sram allocator In-Reply-To: <1403041.Yj2MdIhcZO@wuerfel> References: <1313377794-26721-1-git-send-email-leoy@marvell.com> <1313377794-26721-2-git-send-email-leoy@marvell.com> <1403041.Yj2MdIhcZO@wuerfel> Message-ID: <20110815090921.GA32705@game.jcrosoft.org> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On 10:59 Mon 15 Aug , Arnd Bergmann wrote: > On Monday 15 August 2011 11:09:52 Leo Yan wrote: > > On mmp platform, there have two sram banks: > > audio sram and internal sram. The audio sram is mainly for audio; > > the internal sram is for video, wtm and power management. > > So add the sram allocator using genalloc to manage them. > > > > Every sram bank will register its own platform device > > info, after the sram allocator create the generic pool > > for the sram bank, the user module can use the pool's > > name to get the pool handler; then it can use the handler > > to alloc/free memory with genalloc APIs. > > > > Signed-off-by: Leo Yan > > --- > > arch/arm/Kconfig | 1 + > > arch/arm/mach-mmp/Makefile | 2 +- > > arch/arm/mach-mmp/include/mach/sram.h | 35 +++++++ > > arch/arm/mach-mmp/sram.c | 168 +++++++++++++++++++++++++++++++++ > > 4 files changed, 205 insertions(+), 1 deletions(-) > > create mode 100644 arch/arm/mach-mmp/include/mach/sram.h > > create mode 100644 arch/arm/mach-mmp/sram.c > > Some time ago, there was talk of merging the existing sram drivers > and creating a common driver that is easy to hook into. > > What has happened with that? My feeling is that we should stop adding > more drivers like this in the platform code but rather put an > authoritative copy into arch/arm/mm/ or even the top-level mm/ directory > and change over the existing drivers to hook into that one. no need anymore I send patch to add the support of phys/virt to genalloc so now we just have to use it Best Regards, J.